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Finding the Fourth Proportional to 636,670.44, 954,901.86 and 187,286.21

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Solution

The fourth proportional to 636,670.44, 954,901.86 and 187,286.21 is: 280,898.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,670.44 : 954,901.86 = 187,286.21 : x
  2. Step 2: Convert to fraction form
    636,670.44/954,901.86 = 187,286.21/x
  3. Step 3: Cross multiply
    636,670.44x = 954,901.86 × 187,286.21
  4. Step 4: Simplify right side
    636,670.44x = 178,839,944,570.41
  5. Step 5: Solve for x
    x = 178,839,944,570.41/636,670.44
  6. Step 6: Final answer
    x = 280,898.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.